| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.flink.streaming.util.serialization; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.api.common.serialization.SerializationSchema; |
| |
| /** |
| * A simple wrapper for using the SerializationSchema with the KeyedDeserializationSchema |
| * interface. |
| * @param <T> The type to serialize |
| */ |
| @Internal |
| public class KeyedSerializationSchemaWrapper<T> implements KeyedSerializationSchema<T> { |
| |
| private static final long serialVersionUID = 1351665280744549933L; |
| |
| private final SerializationSchema<T> serializationSchema; |
| |
| public KeyedSerializationSchemaWrapper(SerializationSchema<T> serializationSchema) { |
| this.serializationSchema = serializationSchema; |
| } |
| |
| @Override |
| public byte[] serializeKey(T element) { |
| return null; |
| } |
| |
| @Override |
| public byte[] serializeValue(T element) { |
| return serializationSchema.serialize(element); |
| } |
| |
| @Override |
| public String getTargetTopic(T element) { |
| return null; // we are never overriding the topic |
| } |
| } |